Archibald brake



(No Model.) 2 sheets -Sheet 1. A. BRAKE.- WATBRHEATER Patented Feb.25; 1890.

Wi Less es fnl enior u. PEYERS. mono-mum Walhingtoll. n. c.

(No Model.) 2 Sheets-Sheet 2.

A. BRAKE.

WATER HEATER.

No. 422,288. Patented Feb. 25, 1890.

[Wei afar n. PETERS. PhohrUlhmgv-aphcr, Wnhington, no,

. crown immediately over the fire-box.

UNITED STATES PATENT- OFFICE.

AROHIBALD BRAKE, OF TORONTO, ONTARIO, CANADA.

WATER-H EATER.

SPECIFICATION forming part of Letters Patent No. 422,288, dated February 25, 1890.

Application filed June 27, 1889- Serial No. 315,725. (No model.)

To all whom it may concern:

Be it known that I, AROHIBALD BRAKE, molder, of the city of Toronto, in the county of York, in theProvince of Ontario, Canada, have invented a certain new and useful Improvement in Hot-Water Heaters, of which the following is a specification.

The invention relates to that class of waterheaters in which the water passes through tubes suspended above the fire-box.

The object of the invention is to construct a cheaply-made boiler in which the tubes will remain tight and in which a large heatingsurface is secured in a boiler occupying but very little space; and it consists,essentially, of vertical wrought metal tubes expanded into wrought-metal tube-sheets, each wroughtmetal tube-sheet being bolted to a cast-metal section shaped to form a water-space, the whole being otherwise constructed substantially as hereinafter more particularly eX- plained.

Figure 1 is a perspective outside view of my improved heater. Fig. 2 is a sectional side elevation of samee Fig. 3 is a vertical cross-section. Fig. i is an enlarged detail showing the joint between the wrought=metal tube sheets and their respective waer-sections.

On reference to Fig. 1 it will be noticed that my hot=water heater is constructed so as to occupy but very little ground-space. For' cheapness of construction I make the heater with cast metal arranged in sections properly jointed together. The bottom section A forms an ash-pit, and is shaped so as to support and retain in position the next section B, which constitutes the fire box. It will be observed that the fire=box section B is hollow, the interior wall of the section being corrugated, as indicated. Immediately over the fire' box section B, I bolt the hollow section 0, which is shaped, as shown, to form a water- A water-tight joint is formed between the watercrown section 0 and the fire-box section B. An opening a at either end through the top of the section B and the bottom of the watercrown section 0 permits the water which en 5o ters the fire-box section B from the returnpipes D to flow into the water-crown section 0. The top of the water crown section C is cast open, but is closed by the wrought-metal tube-sheet E, in which tube=sheet the lower ends of the tubes F are expanded. The joint between the water-crown section 0 and the tubesheet E is made by bolts G, which compress any suitable packing placed between said section and tubesheet, as indicated in Fig. 4:. The upper tube-sheetH is also made of wrought metal, and the upper ends of the tubes F are expanded in the said tube-sheet H to form water-tight joints in the same manner as the connection. is made between the tube-sheet E and the lower end of the said tubes. The upper water=section I is made of castiron, and is bolted, as indicated in Fig. 4, to the tube sheet H, a suitable joint being made between the two, as shown in Fig. l.

The outer casing of myimproved heater is composed of'plates J, preferably made of castiron and bolted together, as indicated in Fig. 1. As indicated by Fig. 3, the water-crown section 0 is shaped so that the flame and heated gases will ascend from the fire-pot into the space inclosed by the plates J and surround the tubes F, finally escaping through the smoke-fines K, thus utilizing to the fullest extent the heat produced in the fire-box.

To recapitulate, I may state that the water,

which enters the fire-box section B by way of the pipes D, ascends through the water-crown section 0, thence up the tubes F into the upper water section Land thence out of the dis tributing pipes L.

When the furnace=door M is opened, the fuel may be easily inserted in the fire-box, and the lower outer portions of the tubes F may be readily cleaned. For this latter purpose I also have a door opposite to the door M.

WVhat I claim as my invention is 1. The watercrown section 0, having a cor= rugated bottom and downwardly-projecting perforated ends, the lower tube-sheet E, bolted thereto, the tubes F, secured in said tubesheet, the upper tube-sheet secured to said tubes F, and the upper water section I, bolted to said upper tubesheet, substantially as and for the purpose specified.

2. The fire-box section B, having a corru gated interior wall, the Water-crown section the upper and lower sections, upper Water- O, bolted to the section B, in combination section I, and easing formed by the outer with the tube-sheet E, tubes F, connecting plates J, arranged substantially as and for the upper and lower sections, and upper wathe purpose specified.

5 oer-section 1, arranged substantially as and Toronto, May 30, 1889.

for the purpose specified.

3. The fire-box section 13, having a corru- AROHHALD LRAKE gated interior wall, the water-crown section In presence 013- C, bolted to the section B, in combination CHARLES C. BALDWIN, 10 with the tube-sheet E, tubes F, connecting CHAS. I-I. RICHES. 

